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authorMarcel Holtmann <marcel@holtmann.org>2007-07-11 06:42:35 +0200
committerMarcel Holtmann <marcel@holtmann.org>2007-07-11 06:42:35 +0200
commitbabf4d42d0a41ff58463b0a0515683cdce66f541 (patch)
tree690c1e0a2e06bad2e16a4ab87221b6d63bc9e3da /drivers/bluetooth
parentef222013fc8c1a2fcba5c7ab169be8ffcb778ec4 (diff)
downloadlinux-babf4d42d0a41ff58463b0a0515683cdce66f541.tar.bz2
[Bluetooth] Use hci_recv_fragment() within HCI USB driver
This patch modifies the HCI USB driver to use the new helper function for reassembling HCI data packets and events. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/hci_usb.c88
-rw-r--r--drivers/bluetooth/hci_usb.h5
2 files changed, 4 insertions, 89 deletions
diff --git a/drivers/bluetooth/hci_usb.c b/drivers/bluetooth/hci_usb.c
index 7e04dd69f609..59b054810ed0 100644
--- a/drivers/bluetooth/hci_usb.c
+++ b/drivers/bluetooth/hci_usb.c
@@ -199,7 +199,6 @@ static void hci_usb_tx_complete(struct urb *urb);
#define __pending_q(husb, type) (&husb->pending_q[type-1])
#define __completed_q(husb, type) (&husb->completed_q[type-1])
#define __transmit_q(husb, type) (&husb->transmit_q[type-1])
-#define __reassembly(husb, type) (husb->reassembly[type-1])
static inline struct _urb *__get_completed(struct hci_usb *husb, int type)
{
@@ -429,12 +428,6 @@ static void hci_usb_unlink_urbs(struct hci_usb *husb)
kfree(urb->transfer_buffer);
_urb_free(_urb);
}
-
- /* Release reassembly buffers */
- if (husb->reassembly[i]) {
- kfree_skb(husb->reassembly[i]);
- husb->reassembly[i] = NULL;
- }
}
}
@@ -671,83 +664,6 @@ static int hci_usb_send_frame(struct sk_buff *skb)
return 0;
}
-static inline int __recv_frame(struct hci_usb *husb, int type, void *data, int count)
-{
- BT_DBG("%s type %d data %p count %d", husb->hdev->name, type, data, count);
-
- husb->hdev->stat.byte_rx += count;
-
- while (count) {
- struct sk_buff *skb = __reassembly(husb, type);
- struct { int expect; } *scb;
- int len = 0;
-
- if (!skb) {
- /* Start of the frame */
-
- switch (type) {
- case HCI_EVENT_PKT:
- if (count >= HCI_EVENT_HDR_SIZE) {
- struct hci_event_hdr *h = data;
- len = HCI_EVENT_HDR_SIZE + h->plen;
- } else
- return -EILSEQ;
- break;
-
- case HCI_ACLDATA_PKT:
- if (count >= HCI_ACL_HDR_SIZE) {
- struct hci_acl_hdr *h = data;
- len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen);
- } else
- return -EILSEQ;
- break;
-#ifdef CONFIG_BT_HCIUSB_SCO
- case HCI_SCODATA_PKT:
- if (count >= HCI_SCO_HDR_SIZE) {
- struct hci_sco_hdr *h = data;
- len = HCI_SCO_HDR_SIZE + h->dlen;
- } else
- return -EILSEQ;
- break;
-#endif
- }
- BT_DBG("new packet len %d", len);
-
- skb = bt_skb_alloc(len, GFP_ATOMIC);
- if (!skb) {
- BT_ERR("%s no memory for the packet", husb->hdev->name);
- return -ENOMEM;
- }
- skb->dev = (void *) husb->hdev;
- bt_cb(skb)->pkt_type = type;
-
- __reassembly(husb, type) = skb;
-
- scb = (void *) skb->cb;
- scb->expect = len;
- } else {
- /* Continuation */
- scb = (void *) skb->cb;
- len = scb->expect;
- }
-
- len = min(len, count);
-
- memcpy(skb_put(skb, len), data, len);
-
- scb->expect -= len;
- if (!scb->expect) {
- /* Complete frame */
- __reassembly(husb, type) = NULL;
- bt_cb(skb)->pkt_type = type;
- hci_recv_frame(skb);
- }
-
- count -= len; data += len;
- }
- return 0;
-}
-
static void hci_usb_rx_complete(struct urb *urb)
{
struct _urb *_urb = container_of(urb, struct _urb, urb);
@@ -776,7 +692,7 @@ static void hci_usb_rx_complete(struct urb *urb)
urb->iso_frame_desc[i].actual_length);
if (!urb->iso_frame_desc[i].status)
- __recv_frame(husb, _urb->type,
+ hci_recv_fragment(husb->hdev, _urb->type,
urb->transfer_buffer + urb->iso_frame_desc[i].offset,
urb->iso_frame_desc[i].actual_length);
}
@@ -784,7 +700,7 @@ static void hci_usb_rx_complete(struct urb *urb)
;
#endif
} else {
- err = __recv_frame(husb, _urb->type, urb->transfer_buffer, count);
+ err = hci_recv_fragment(husb->hdev, _urb->type, urb->transfer_buffer, count);
if (err < 0) {
BT_ERR("%s corrupted packet: type %d count %d",
husb->hdev->name, _urb->type, count);
diff --git a/drivers/bluetooth/hci_usb.h b/drivers/bluetooth/hci_usb.h
index 963fc55cdc85..56cd3a92ceca 100644
--- a/drivers/bluetooth/hci_usb.h
+++ b/drivers/bluetooth/hci_usb.h
@@ -102,9 +102,9 @@ struct hci_usb {
struct hci_dev *hdev;
unsigned long state;
-
+
struct usb_device *udev;
-
+
struct usb_host_endpoint *bulk_in_ep;
struct usb_host_endpoint *bulk_out_ep;
struct usb_host_endpoint *intr_in_ep;
@@ -116,7 +116,6 @@ struct hci_usb {
__u8 ctrl_req;
struct sk_buff_head transmit_q[4];
- struct sk_buff *reassembly[4]; /* Reassembly buffers */
rwlock_t completion_lock;